556 lines
20 KiB
C++
556 lines
20 KiB
C++
/*************************************************************************/
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/* button.cpp */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md). */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#include "button.h"
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#include "core/string/translation.h"
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#include "servers/rendering_server.h"
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Size2 Button::get_minimum_size() const {
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Ref<Texture2D> _icon;
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if (icon.is_null() && has_theme_icon(SNAME("icon"))) {
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_icon = Control::get_theme_icon(SNAME("icon"));
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} else {
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_icon = icon;
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}
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return get_minimum_size_for_text_and_icon("", _icon);
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}
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void Button::_set_internal_margin(Side p_side, float p_value) {
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_internal_margin[p_side] = p_value;
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}
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void Button::_notification(int p_what) {
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switch (p_what) {
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case NOTIFICATION_LAYOUT_DIRECTION_CHANGED: {
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update();
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} break;
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case NOTIFICATION_TRANSLATION_CHANGED: {
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xl_text = atr(text);
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_shape();
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update_minimum_size();
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update();
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} break;
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case NOTIFICATION_THEME_CHANGED: {
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_shape();
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update_minimum_size();
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update();
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} break;
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case NOTIFICATION_DRAW: {
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RID ci = get_canvas_item();
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Size2 size = get_size();
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Color color;
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Color color_icon(1, 1, 1, 1);
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Ref<StyleBox> style = get_theme_stylebox(SNAME("normal"));
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bool rtl = is_layout_rtl();
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switch (get_draw_mode()) {
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case DRAW_NORMAL: {
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if (rtl && has_theme_stylebox(SNAME("normal_mirrored"))) {
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style = get_theme_stylebox(SNAME("normal_mirrored"));
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} else {
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style = get_theme_stylebox(SNAME("normal"));
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}
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if (!flat) {
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style->draw(ci, Rect2(Point2(0, 0), size));
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}
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// Focus colors only take precedence over normal state.
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if (has_focus()) {
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color = get_theme_color(SNAME("font_focus_color"));
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if (has_theme_color(SNAME("icon_focus_color"))) {
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color_icon = get_theme_color(SNAME("icon_focus_color"));
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}
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} else {
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color = get_theme_color(SNAME("font_color"));
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if (has_theme_color(SNAME("icon_normal_color"))) {
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color_icon = get_theme_color(SNAME("icon_normal_color"));
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}
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}
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} break;
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case DRAW_HOVER_PRESSED: {
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// Edge case for CheckButton and CheckBox.
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if (has_theme_stylebox("hover_pressed")) {
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if (rtl && has_theme_stylebox(SNAME("hover_pressed_mirrored"))) {
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style = get_theme_stylebox(SNAME("hover_pressed_mirrored"));
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} else {
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style = get_theme_stylebox(SNAME("hover_pressed"));
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}
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if (!flat) {
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style->draw(ci, Rect2(Point2(0, 0), size));
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}
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if (has_theme_color(SNAME("font_hover_pressed_color"))) {
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color = get_theme_color(SNAME("font_hover_pressed_color"));
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}
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if (has_theme_color(SNAME("icon_hover_pressed_color"))) {
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color_icon = get_theme_color(SNAME("icon_hover_pressed_color"));
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}
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break;
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}
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[[fallthrough]];
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}
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case DRAW_PRESSED: {
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if (rtl && has_theme_stylebox(SNAME("pressed_mirrored"))) {
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style = get_theme_stylebox(SNAME("pressed_mirrored"));
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} else {
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style = get_theme_stylebox(SNAME("pressed"));
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}
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if (!flat) {
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style->draw(ci, Rect2(Point2(0, 0), size));
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}
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if (has_theme_color(SNAME("font_pressed_color"))) {
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color = get_theme_color(SNAME("font_pressed_color"));
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} else {
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color = get_theme_color(SNAME("font_color"));
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}
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if (has_theme_color(SNAME("icon_pressed_color"))) {
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color_icon = get_theme_color(SNAME("icon_pressed_color"));
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}
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} break;
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case DRAW_HOVER: {
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if (rtl && has_theme_stylebox(SNAME("hover_mirrored"))) {
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style = get_theme_stylebox(SNAME("hover_mirrored"));
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} else {
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style = get_theme_stylebox(SNAME("hover"));
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}
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if (!flat) {
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style->draw(ci, Rect2(Point2(0, 0), size));
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}
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color = get_theme_color(SNAME("font_hover_color"));
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if (has_theme_color(SNAME("icon_hover_color"))) {
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color_icon = get_theme_color(SNAME("icon_hover_color"));
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}
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} break;
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case DRAW_DISABLED: {
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if (rtl && has_theme_stylebox(SNAME("disabled_mirrored"))) {
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style = get_theme_stylebox(SNAME("disabled_mirrored"));
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} else {
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style = get_theme_stylebox(SNAME("disabled"));
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}
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if (!flat) {
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style->draw(ci, Rect2(Point2(0, 0), size));
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}
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color = get_theme_color(SNAME("font_disabled_color"));
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if (has_theme_color(SNAME("icon_disabled_color"))) {
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color_icon = get_theme_color(SNAME("icon_disabled_color"));
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} else {
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color_icon.a = 0.4;
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}
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} break;
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}
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if (has_focus()) {
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Ref<StyleBox> style2 = get_theme_stylebox(SNAME("focus"));
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style2->draw(ci, Rect2(Point2(), size));
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}
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Ref<Texture2D> _icon;
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if (icon.is_null() && has_theme_icon(SNAME("icon"))) {
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_icon = Control::get_theme_icon(SNAME("icon"));
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} else {
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_icon = icon;
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}
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Rect2 icon_region = Rect2();
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HorizontalAlignment icon_align_rtl_checked = icon_alignment;
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HorizontalAlignment align_rtl_checked = alignment;
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// Swap icon and text alignment sides if right-to-left layout is set.
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if (rtl) {
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if (icon_alignment == HORIZONTAL_ALIGNMENT_RIGHT) {
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icon_align_rtl_checked = HORIZONTAL_ALIGNMENT_LEFT;
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} else if (icon_alignment == HORIZONTAL_ALIGNMENT_LEFT) {
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icon_align_rtl_checked = HORIZONTAL_ALIGNMENT_RIGHT;
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}
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if (alignment == HORIZONTAL_ALIGNMENT_RIGHT) {
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align_rtl_checked = HORIZONTAL_ALIGNMENT_LEFT;
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} else if (alignment == HORIZONTAL_ALIGNMENT_LEFT) {
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align_rtl_checked = HORIZONTAL_ALIGNMENT_RIGHT;
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}
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}
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if (!_icon.is_null()) {
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int valign = size.height - style->get_minimum_size().y;
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float icon_ofs_region = 0.0;
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Point2 style_offset;
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Size2 icon_size = _icon->get_size();
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if (icon_align_rtl_checked == HORIZONTAL_ALIGNMENT_LEFT) {
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style_offset.x = style->get_margin(SIDE_LEFT);
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if (_internal_margin[SIDE_LEFT] > 0) {
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icon_ofs_region = _internal_margin[SIDE_LEFT] + get_theme_constant(SNAME("h_separation"));
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}
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} else if (icon_align_rtl_checked == HORIZONTAL_ALIGNMENT_CENTER) {
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style_offset.x = 0.0;
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} else if (icon_align_rtl_checked == HORIZONTAL_ALIGNMENT_RIGHT) {
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style_offset.x = -style->get_margin(SIDE_RIGHT);
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if (_internal_margin[SIDE_RIGHT] > 0) {
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icon_ofs_region = -_internal_margin[SIDE_RIGHT] - get_theme_constant(SNAME("h_separation"));
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}
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}
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style_offset.y = style->get_margin(SIDE_TOP);
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if (expand_icon) {
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Size2 _size = get_size() - style->get_offset() * 2;
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int icon_text_separation = text.is_empty() ? 0 : get_theme_constant(SNAME("h_separation"));
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_size.width -= icon_text_separation + icon_ofs_region;
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if (!clip_text && icon_align_rtl_checked != HORIZONTAL_ALIGNMENT_CENTER) {
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_size.width -= text_buf->get_size().width;
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}
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float icon_width = _icon->get_width() * _size.height / _icon->get_height();
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float icon_height = _size.height;
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if (icon_width > _size.width) {
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icon_width = _size.width;
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icon_height = _icon->get_height() * icon_width / _icon->get_width();
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}
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icon_size = Size2(icon_width, icon_height);
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}
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if (icon_align_rtl_checked == HORIZONTAL_ALIGNMENT_LEFT) {
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icon_region = Rect2(style_offset + Point2(icon_ofs_region, Math::floor((valign - icon_size.y) * 0.5)), icon_size);
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} else if (icon_align_rtl_checked == HORIZONTAL_ALIGNMENT_CENTER) {
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icon_region = Rect2(style_offset + Point2(icon_ofs_region + Math::floor((size.x - icon_size.x) * 0.5), Math::floor((valign - icon_size.y) * 0.5)), icon_size);
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} else {
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icon_region = Rect2(style_offset + Point2(icon_ofs_region + size.x - icon_size.x, Math::floor((valign - icon_size.y) * 0.5)), icon_size);
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}
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if (icon_region.size.width > 0) {
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draw_texture_rect_region(_icon, icon_region, Rect2(Point2(), _icon->get_size()), color_icon);
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}
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}
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Point2 icon_ofs = !_icon.is_null() ? Point2(icon_region.size.width + get_theme_constant(SNAME("h_separation")), 0) : Point2();
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if (align_rtl_checked == HORIZONTAL_ALIGNMENT_CENTER && icon_align_rtl_checked == HORIZONTAL_ALIGNMENT_CENTER) {
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icon_ofs.x = 0.0;
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}
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int text_clip = size.width - style->get_minimum_size().width - icon_ofs.width;
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text_buf->set_width((clip_text || overrun_behavior != TextServer::OVERRUN_NO_TRIMMING) ? text_clip : -1);
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int text_width = MAX(1, (clip_text || overrun_behavior != TextServer::OVERRUN_NO_TRIMMING) ? MIN(text_clip, text_buf->get_size().x) : text_buf->get_size().x);
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if (_internal_margin[SIDE_LEFT] > 0) {
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text_clip -= _internal_margin[SIDE_LEFT] + get_theme_constant(SNAME("h_separation"));
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}
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if (_internal_margin[SIDE_RIGHT] > 0) {
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text_clip -= _internal_margin[SIDE_RIGHT] + get_theme_constant(SNAME("h_separation"));
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}
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Point2 text_ofs = (size - style->get_minimum_size() - icon_ofs - text_buf->get_size() - Point2(_internal_margin[SIDE_RIGHT] - _internal_margin[SIDE_LEFT], 0)) / 2.0;
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text_buf->set_alignment(align_rtl_checked);
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text_buf->set_width(text_width);
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switch (align_rtl_checked) {
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case HORIZONTAL_ALIGNMENT_FILL:
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case HORIZONTAL_ALIGNMENT_LEFT: {
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if (icon_align_rtl_checked != HORIZONTAL_ALIGNMENT_LEFT) {
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icon_ofs.x = 0.0;
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}
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if (_internal_margin[SIDE_LEFT] > 0) {
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text_ofs.x = style->get_margin(SIDE_LEFT) + icon_ofs.x + _internal_margin[SIDE_LEFT] + get_theme_constant(SNAME("h_separation"));
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} else {
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text_ofs.x = style->get_margin(SIDE_LEFT) + icon_ofs.x;
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}
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text_ofs.y += style->get_offset().y;
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} break;
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case HORIZONTAL_ALIGNMENT_CENTER: {
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if (text_ofs.x < 0) {
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text_ofs.x = 0;
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}
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if (icon_align_rtl_checked == HORIZONTAL_ALIGNMENT_LEFT) {
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text_ofs += icon_ofs;
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}
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text_ofs += style->get_offset();
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} break;
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case HORIZONTAL_ALIGNMENT_RIGHT: {
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if (_internal_margin[SIDE_RIGHT] > 0) {
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text_ofs.x = size.x - style->get_margin(SIDE_RIGHT) - text_width - _internal_margin[SIDE_RIGHT] - get_theme_constant(SNAME("h_separation"));
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} else {
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text_ofs.x = size.x - style->get_margin(SIDE_RIGHT) - text_width;
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}
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text_ofs.y += style->get_offset().y;
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if (icon_align_rtl_checked == HORIZONTAL_ALIGNMENT_RIGHT) {
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text_ofs.x -= icon_ofs.x;
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}
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} break;
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}
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Color font_outline_color = get_theme_color(SNAME("font_outline_color"));
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int outline_size = get_theme_constant(SNAME("outline_size"));
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if (outline_size > 0 && font_outline_color.a > 0) {
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text_buf->draw_outline(ci, text_ofs, outline_size, font_outline_color);
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}
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text_buf->draw(ci, text_ofs, color);
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} break;
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}
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}
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Size2 Button::get_minimum_size_for_text_and_icon(const String &p_text, Ref<Texture2D> p_icon) const {
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Ref<TextParagraph> paragraph;
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if (p_text.is_empty()) {
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paragraph = text_buf;
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} else {
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paragraph.instantiate();
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const_cast<Button *>(this)->_shape(paragraph, p_text);
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}
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Size2 minsize = paragraph->get_size();
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if (clip_text || overrun_behavior != TextServer::OVERRUN_NO_TRIMMING) {
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minsize.width = 0;
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}
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if (!expand_icon && !p_icon.is_null()) {
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minsize.height = MAX(minsize.height, p_icon->get_height());
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if (icon_alignment != HORIZONTAL_ALIGNMENT_CENTER) {
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minsize.width += p_icon->get_width();
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if (!xl_text.is_empty() || !p_text.is_empty()) {
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minsize.width += get_theme_constant(SNAME("hseparation"));
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}
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} else {
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minsize.width = MAX(minsize.width, p_icon->get_width());
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}
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}
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if (!xl_text.is_empty() || !p_text.is_empty()) {
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Ref<Font> font = get_theme_font(SNAME("font"));
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float font_height = font->get_height(get_theme_font_size(SNAME("font_size")));
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minsize.height = MAX(font_height, minsize.height);
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}
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return get_theme_stylebox(SNAME("normal"))->get_minimum_size() + minsize;
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}
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void Button::_shape(Ref<TextParagraph> p_paragraph, String p_text) {
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if (p_paragraph.is_null()) {
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p_paragraph = text_buf;
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}
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if (p_text.is_empty()) {
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p_text = xl_text;
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}
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Ref<Font> font = get_theme_font(SNAME("font"));
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int font_size = get_theme_font_size(SNAME("font_size"));
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p_paragraph->clear();
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if (text_direction == Control::TEXT_DIRECTION_INHERITED) {
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p_paragraph->set_direction(is_layout_rtl() ? TextServer::DIRECTION_RTL : TextServer::DIRECTION_LTR);
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} else {
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p_paragraph->set_direction((TextServer::Direction)text_direction);
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}
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p_paragraph->add_string(p_text, font, font_size, language);
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p_paragraph->set_text_overrun_behavior(overrun_behavior);
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}
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void Button::set_text_overrun_behavior(TextServer::OverrunBehavior p_behavior) {
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if (overrun_behavior != p_behavior) {
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overrun_behavior = p_behavior;
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_shape();
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update();
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update_minimum_size();
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}
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}
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TextServer::OverrunBehavior Button::get_text_overrun_behavior() const {
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return overrun_behavior;
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}
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void Button::set_text(const String &p_text) {
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if (text != p_text) {
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text = p_text;
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xl_text = atr(text);
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_shape();
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update();
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update_minimum_size();
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}
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}
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String Button::get_text() const {
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return text;
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}
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void Button::set_text_direction(Control::TextDirection p_text_direction) {
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ERR_FAIL_COND((int)p_text_direction < -1 || (int)p_text_direction > 3);
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if (text_direction != p_text_direction) {
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text_direction = p_text_direction;
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_shape();
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update();
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}
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}
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Control::TextDirection Button::get_text_direction() const {
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return text_direction;
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}
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void Button::set_language(const String &p_language) {
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if (language != p_language) {
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language = p_language;
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_shape();
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update();
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}
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}
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String Button::get_language() const {
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return language;
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}
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void Button::set_icon(const Ref<Texture2D> &p_icon) {
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if (icon != p_icon) {
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icon = p_icon;
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update();
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update_minimum_size();
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}
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}
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Ref<Texture2D> Button::get_icon() const {
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return icon;
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}
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void Button::set_expand_icon(bool p_enabled) {
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if (expand_icon != p_enabled) {
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expand_icon = p_enabled;
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update();
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update_minimum_size();
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}
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}
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bool Button::is_expand_icon() const {
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return expand_icon;
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}
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void Button::set_flat(bool p_enabled) {
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if (flat != p_enabled) {
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flat = p_enabled;
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update();
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}
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}
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bool Button::is_flat() const {
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return flat;
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}
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void Button::set_clip_text(bool p_enabled) {
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if (clip_text != p_enabled) {
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clip_text = p_enabled;
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update();
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update_minimum_size();
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}
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}
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bool Button::get_clip_text() const {
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return clip_text;
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}
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void Button::set_text_alignment(HorizontalAlignment p_alignment) {
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if (alignment != p_alignment) {
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alignment = p_alignment;
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update();
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}
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}
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HorizontalAlignment Button::get_text_alignment() const {
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return alignment;
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}
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void Button::set_icon_alignment(HorizontalAlignment p_alignment) {
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icon_alignment = p_alignment;
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update_minimum_size();
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update();
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}
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HorizontalAlignment Button::get_icon_alignment() const {
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return icon_alignment;
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}
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void Button::_bind_methods() {
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ClassDB::bind_method(D_METHOD("set_text", "text"), &Button::set_text);
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ClassDB::bind_method(D_METHOD("get_text"), &Button::get_text);
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ClassDB::bind_method(D_METHOD("set_text_overrun_behavior", "overrun_behavior"), &Button::set_text_overrun_behavior);
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ClassDB::bind_method(D_METHOD("get_text_overrun_behavior"), &Button::get_text_overrun_behavior);
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ClassDB::bind_method(D_METHOD("set_text_direction", "direction"), &Button::set_text_direction);
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ClassDB::bind_method(D_METHOD("get_text_direction"), &Button::get_text_direction);
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ClassDB::bind_method(D_METHOD("set_language", "language"), &Button::set_language);
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ClassDB::bind_method(D_METHOD("get_language"), &Button::get_language);
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ClassDB::bind_method(D_METHOD("set_button_icon", "texture"), &Button::set_icon);
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ClassDB::bind_method(D_METHOD("get_button_icon"), &Button::get_icon);
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ClassDB::bind_method(D_METHOD("set_flat", "enabled"), &Button::set_flat);
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ClassDB::bind_method(D_METHOD("is_flat"), &Button::is_flat);
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ClassDB::bind_method(D_METHOD("set_clip_text", "enabled"), &Button::set_clip_text);
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ClassDB::bind_method(D_METHOD("get_clip_text"), &Button::get_clip_text);
|
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ClassDB::bind_method(D_METHOD("set_text_alignment", "alignment"), &Button::set_text_alignment);
|
|
ClassDB::bind_method(D_METHOD("get_text_alignment"), &Button::get_text_alignment);
|
|
ClassDB::bind_method(D_METHOD("set_icon_alignment", "icon_alignment"), &Button::set_icon_alignment);
|
|
ClassDB::bind_method(D_METHOD("get_icon_alignment"), &Button::get_icon_alignment);
|
|
ClassDB::bind_method(D_METHOD("set_expand_icon", "enabled"), &Button::set_expand_icon);
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|
ClassDB::bind_method(D_METHOD("is_expand_icon"), &Button::is_expand_icon);
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|
|
|
ADD_PROPERTY(PropertyInfo(Variant::STRING, "text", PROPERTY_HINT_MULTILINE_TEXT, "", PROPERTY_USAGE_DEFAULT_INTL), "set_text", "get_text");
|
|
ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "icon", PROPERTY_HINT_RESOURCE_TYPE, "Texture2D"), "set_button_icon", "get_button_icon");
|
|
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "flat"), "set_flat", "is_flat");
|
|
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "clip_text"), "set_clip_text", "get_clip_text");
|
|
ADD_PROPERTY(PropertyInfo(Variant::INT, "alignment", PROPERTY_HINT_ENUM, "Left,Center,Right"), "set_text_alignment", "get_text_alignment");
|
|
ADD_PROPERTY(PropertyInfo(Variant::INT, "text_overrun_behavior", PROPERTY_HINT_ENUM, "Trim Nothing,Trim Characters,Trim Words,Ellipsis,Word Ellipsis"), "set_text_overrun_behavior", "get_text_overrun_behavior");
|
|
ADD_PROPERTY(PropertyInfo(Variant::INT, "icon_alignment", PROPERTY_HINT_ENUM, "Left,Center,Right"), "set_icon_alignment", "get_icon_alignment");
|
|
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "expand_icon"), "set_expand_icon", "is_expand_icon");
|
|
|
|
ADD_GROUP("BiDi", "");
|
|
ADD_PROPERTY(PropertyInfo(Variant::INT, "text_direction", PROPERTY_HINT_ENUM, "Auto,Left-to-Right,Right-to-Left,Inherited"), "set_text_direction", "get_text_direction");
|
|
ADD_PROPERTY(PropertyInfo(Variant::STRING, "language", PROPERTY_HINT_LOCALE_ID, ""), "set_language", "get_language");
|
|
}
|
|
|
|
Button::Button(const String &p_text) {
|
|
text_buf.instantiate();
|
|
text_buf->set_break_flags(TextServer::BREAK_MANDATORY);
|
|
set_mouse_filter(MOUSE_FILTER_STOP);
|
|
|
|
set_text(p_text);
|
|
}
|
|
|
|
Button::~Button() {
|
|
}
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